Chapter 9 Guided Reading Assignment #2
1. Read: 254-264
2. Define the following terms:
a)
b)
c)
d)
e)
f)
Plate Tectonics
Plate
Divergent Boundary
Convergent Boundary
Transform Fault Boundary
Oceanic Ridge
g)
h)
i)
j)
k)
l)
Rift Valley
Seafloor Spreading
Subduction Zone
Trench
Continental Arc
Volcanic Island Arc
3. List the five key concepts for this sections.
4. According to the plate tectonics theory, ___________________________________
__________________________________________________________________
5. Explain how plates move.
6. We live on the _____________ plate.
7. How is current theory different from Wegener’s theory?
8. Explain how convection currents move Earth’s plates.
9. In the table below, compare the three types of plate boundaries by completing the
table.
Boundary Tupe
Relative Plate Motion
Divergent
Boundaries
Convergent
Boundaries
Transform Fault
Boundaries
10. What is meant by lithospheric plates?
11. Where are most divergent plate bound found?
12. What is meant by “divergent boundaries are thought of as constructive plate
margins?”
CPHS Physical Geology
Mr. G. Edelman
13. How does the distribution of Mesosaurus provide evidence of continental drift?
14. Deep faulted structures called __________ are found along the axes of some
segments.
15. The longest physical feature on the Earth’s surface is _______________.
16. Why is the Atlantic Ocean getting larger?
17. How do continental rifts form?
18. How do Mount Kilimanjaro and Mount Kenya demonstrate continental rifting?
19. Describe the most widely accepted model for continental breakup?
20. A ________________ occurs when one oceanic plate is forced into the mantle
beneath the second plate.
21. In the table below, outline each of the convergent boundary types.
1.
Oceanic-Continental
1.
Oceanic-Oceanic
Continental-Continental
1.
2.
2.
2.
3.
3.
3.
4.
4.
4.
22. With the addition of material at rifts, whys isn’t the planet getting larger?
23. Why doesn’t volcanic activity occur close to treneches?
24. Describe the process that occurs when continents converge.
25. What actions of plate boundaries cause the destruction of the lithosphere?
26. What evidence in there that the Earth is neither growing nor shrinking in size?
“
CPHS Physical Geology
Mr. G. Edelman